public class test {
//    private static int x = 100;
    static int x=10;
    static {x+=5;}
    public static void main(String args[]){


        String str = "123";
        String num = new String("123");
        if (str == num) {
            System.out.print("相等");
        }else{
            System.out.print("我们不相等");
        }

    }
    static{x/=3;}
}
